I was just out at Baldy Pipe, a famous skate-spot in Upland, California, and amongst the 30+ years of graffiti was a crudely rendered Tiki Mask piece. Sadly, parts had been painted over throughout the years (looks fairly old 10+ years or older) but it was still easily recognizable. Considering that it was a little bit of a hike just to get there, it was a nice surprise.